A new method to measure the optical defocus of a passive imaging system (ODPIS) is proposed.
提出了一种测量被动成像系统光学散焦的新方法。
Affected by strong scattering medium, the faint target in long range is difficult to detected by passive imaging system.
受强散射介质的影响，被动成像系统难以探测到远距离的微弱目标。
Based on the principles that lateral offset-focus feed makes the antenna pattern deflect an angle, the multi-beam antenna can be used in passive imaging system.
本文首先分析了焦平面阵列馈源横向偏焦产生多波束的原理，并采用面电流法对偏焦抛物面天线方向图进行了编程计算。
Global Positioning system (GPS) aided passive imaging navigation system is presented in this paper.
本文介绍的是一种GPS辅助的被动成像导航系统。
Main task of this dissertation is designing a multi-beam lens antenna to both improve the resolution and reduce the imaging time of the passive millimeter-wave imaging system.
本文的主要任务是针对提高毫米波无源成像系统的分辨率和减小成像时间而设计一个多波束透镜天线。
Relationship between the target scattering function and the echo signal is deduced to hold as a Fourier transform pair by analyzing the texture of echo signal for a passive radar imaging system;
首先分析了无源雷达成像系统的目标回波形式，得到了目标散射分布函数和雷达接收信号之间的傅里叶变换对关系；
Finally, with the other parts of the passive millimeter wave imaging system, successfully get the passive image of the target scene.
最后与毫米波无源成像系统的其他部分联合调试，成功地实现了对场景目标的被动成像。
The main works of this paper surrounds the passive millimeter wave imaging system structure, include of the radiation temperature test on different surface targets, image denoise, edge detection.
本文主要通过毫米波被动成像系统，完成了不同面目标的辐射温度测试，图像去噪处理，图像边缘检测等工作。
As an important part of Passive millimeter wave imaging system, data acquisition system plays an important role in PMMW imaging system performance.
高速数据采集系统作为被动毫米波雷达的重要组成部分，对于其性能的提高起着关键的作用。
As an important part of Passive millimeter wave imaging system, data acquisition system plays an important role in PMMW imaging system performance.
高速数据采集系统作为被动毫米波雷达的重要组成部分，对于其性能的提高起着关键的作用。
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